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JPL Small-Body Database Browser
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441351 (2008 DR4)
Classification: Main-belt Asteroid          SPK-ID: 2441351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .25593518212216 6.1273e-08  
a 3.18025859715863 8.8607e-08 au
q 2.366318533899271 1.8315e-07 au
i 24.77027484853824 1.8476e-05 deg
node 344.3139265953525 2.2432e-05 deg
peri 254.6374649863864 5.4619e-05 deg
M 288.5640831157146 5.1253e-05 deg
tp 2459011.560931803250
(2020-Jun-11.06093180)
0.00030771 TDB
period 2071.534067223868
5.67
8.6575e-05
2.37e-07
d
yr
n .1737842527892617 7.2629e-09 deg/d
Q 3.994198660417989 1.1129e-07 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      4013 days (10.99 yr)  
   first obs. used      2008-02-14  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67504  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:20:04  

Additional Information
 Earth MOID = 1.48847 au 
 Jupiter MOID = 1.62439 au 
 T_jup = 3.009 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO456091  
diameter diameter 5.131 km 2.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

441351 (2008 DR4)          Discovered 2008-Feb-26 by BATTeRS at Bisei SG Center
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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